5/4/2015 Temperature and Release Summary for Shasta and Trinity - April 2015

(Updated twice a week November through April)

Sacramento River Water Temperatures in Degrees F

Day Collected from CDEC (California Data Exchange Center) except for TCD, SPP and Control Point in CFS

Control

TCD SHD minus SPP Point Shasta Spring Crk Keswick

Wt. TCD Wt. 4/1 to 4/30 Generation Powerplant Total

Avg. (Diff) Shd Avg Kwk Bsf Jlf Bnd Rdb Lws Ccr Igo El 815 Release Release RDD BSF RDB LWS

Mar 50.4 49.7 51.1 50.9 56.1 54.8 55.1 56.0 50.6 52.2 51.5 2,939 40 2,992 60.7 62.2 59.9 51.4

Apr

1 50.5 (0.8) ? 49.7 51.8 51.7 54.7 55.8 56.2 57.8 52.0 53.0 51.9 3,189 15 3,055 56.5 53.2 56.1 44.3

2 50.5 (50.5) ! 51.7 51.4 54.3 55.1 55.4 56.6 52.3 52.9 51.9 3,141 26 3,253 59.0 56.8 58.8 45.9

3 50.4 (50.4) ! 51.8 50.9 54.2 55.2 55.5 56.6 52.5 52.6 52.1 2,783 14 3,138 56.0 53.8 58.3 48.1

4 50.1 (0.8) ? 49.3 51.9 51.0 54.4 55.5 55.9 57.0 52.9 52.5 52.8 2,857 15 3,044 58.0 56.5 59.5 49.8

5 50.5 (1.3) ? 49.2 51.9 50.8 53.0 54.0 54.3 55.5 52.2 51.5 51.6 2,888 14 2,962 47.5 48.4 51.5 42.3

6 50.3 (1.0) 49.3 51.9 50.7 52.4 52.7 52.7 53.5 51.2 51.4 50.6 2,830 14 2,878 49.0 47.9 48.6 40.7

7 50.5 (1.1) 49.4 51.7 50.3 51.6 52.5 52.8 53.0 51.4 50.5 50.6 2,978 16 2,745 49.5 47.5 48.8 41.5

8 50.5 (1.0) 49.5 51.6 49.9 52.2 52.4 52.5 53.3 51.6 51.3 51.1 3,424 16 2,719 52.0 49.7 50.8 44.2

9 50.9 (1.2) 49.7 51.7 50.1 53.3 54.2 54.5 54.9 51.4 51.6 51.9 2,203 16 2,964 53.5 50.3 52.6 48.1

10 50.6 (1.0) 49.6 51.8 50.5 54.3 55.4 55.9 56.5 51.4 52.1 52.5 2,811 14 2,968 57.0 54.3 56.6 49.7

11 50.7 (1.1) 49.6 51.9 51.2 55.2 56.4 57.1 57.9 51.7 52.7 52.8 2,586 14 2,969 61.5 59.8 62.0 53.4

12 50.9 (0.4) 50.5 51.9 51.6 55.2 56.6 57.3 58.4 51.8 53.3 53.1 2,199 20 2,971 66.5 60.0 62.1 52.7

13 51.0 (2.0) 49.0 51.8 51.5 56.2 57.6 58.2 59.0 52.0 53.7 53.3 3,105 19 2,968 62.5 59.0 61.7 52.2

14 50.7 (1.2) 49.5 52.1 51.8 55.4 56.8 57.5 58.5 51.7 53.0 53.0 2,776 14 2,967 57.5 55.1 56.2 47.1

15 50.8 (1.6) 49.2 52.4 51.8 54.9 55.9 56.4 57.5 52.1 53.3 52.7 3,051 14 2,967 61.5 60.3 61.2 48.3

16 50.9 (0.7) 50.2 52.9 51.5 56.0 57.0 57.5 58.2 52.7 53.6 53.5 2,714 15 3,332 ^ 69.5 64.2 64.3 54.8

17 51.1 (1.3) 49.8 52.6 51.5 56.0 57.4 58.3 59.6 52.9 53.5 53.9 3,353 17 3,716 ^ 65.0 62.4 64.8 59.1

18 51.0 (0.1) 50.9 52.5 52.4 56.5 58.1 58.9 60.1 53.2 54.2 54.5 3,148 16 3,690 ^ 70.0 65.6 66.0 61.1

19 51.1 (0.6) 50.5 52.5 52.5 57.4 59.1 59.9 61.0 53.2 54.7 54.7 2,734 20 3,689 ^ 76.0 68.5 70.7 62.3

20 51.0 (0.6) 50.4 52.5 52.4 57.4 59.2 60.1 61.7 53.2 54.7 54.7 3,120 16 3,689 71.5 66.5 69.3 62.3

21 51.2 (0.8) 50.4 52.6 52.5 57.7 59.5 60.5 62.0 53.1 54.9 55.1 3,370 14 4,187 69.0 65.5 66.1 60.6

22 51.2 (0.2) 51.0 52.6 53.0 57.5 59.4 60.4 62.2 53.0 54.8 55.1 3,476 14 4,689 70.0 67.5 68.3 59.6

23 51.3 (0.3) 51.0 52.6 52.8 57.1 58.9 59.8 61.6 52.8 54.6 54.8 3,685 16 5,320 72.0 67.8 69.4 56.9

24 51.3 (0.9) 50.4 52.6 52.5 55.5 57.0 57.8 59.4 51.9 53.6 53.7 4,420 14 5,868 61.0 58.5 61.4 51.2

25 51.3 (0.8) 50.5 52.7 52.1 55.4 56.5 57.0 58.1 52.4 53.7 54.1 4,383 14 6,263 62.5 59.6 60.7 53.0

26 51.5 (0.4) 51.1 52.7 52.0 55.1 56.3 56.9 58.2 52.2 53.4 54.2 5,734 14 6,676 64.0 61.4 64.1 55.0

27 51.5 0.0 51.5 52.8 52.5 55.7 57.0 57.6 58.8 52.1 54.1 55.1 4,926 14 6,683 77.5 70.9 71.9 62.5

28 51.4 (0.3) 51.1 52.9 52.8 56.2 57.7 58.4 59.8 51.2 54.3 55.2 5,032 14 6,740 71.5 68.2 70.0 61.8

29 51.5 (0.2) 51.3 53.0 52.9 56.5 58.1 58.8 60.2 50.9 54.6 55.5 5,333 14 6,693 71.5 70.2 71.1 61.0

30 52.0 0.0 52.0 53.1 53.0 55.9 57.4 58.2 59.7 50.8 54.3 55.0 4,828 14 6,680 77.5 73.3 75.0 59.2

Avg 50.9 50.2 52.3 51.7 55.2 56.5 57.1 58.2 52.1 53.3 53.4 3,436 16 4,083 63.2 60.1 61.9 53.0

Tot cfs 103,077 467 122,483

Tot af 204,453 926 242,945

? = Average includes 1-9 estimated hourly readings ! = No Average (10-17 hours missing) & = No Average (18 to 23 hours missing) When available:

# = Station out of service ND = No hourly readings or incorrect ^ = Redding Air Temp Record High

* = Redding Air Temp Record Low

Control Point: Clear Creek 4/1/2015 to 4/17/2015 at 56.0 degrees; 4/18/2015 to 4/30/2015 at 58.0 degrees.

V:\~WATER\_res_ops\Sac River Temperature\Tempmodel\~sactemp\2015TempFiles\[05_2015 Monthly Summary.xlsx]Sac Riv Temps

Mean Daily Air Temp

Degrees F

Mean Daily Release